American Classroom Rules1. If the teacher asks a question, you should give an an

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American Classroom Rules
1. If the teacher asks a question, you should give an answer. If you do not understand the question, you should put up your hand and ask the teacher to repeat the question. If you don’t know the answer , it’s all right to tell the teacher that you don’t know . Then he or she knows what you need to learn.
2. There is no excuse for not doing your homework. If you can not go to school, you should call your teacher or your classmate and ask for the homework. It is your responsibility to find out what homework you have missed. It is not the teacher’s job to remind you of missed homework.
3. You must not be absent(缺席) on a test day. If you are badly ill, call and let the teacher know you will not be there for the test. If your teacher allows you to take a makeup , you should take the test within one or two days after you return to class. Bad illness is the only reason for missing a test.
4. Be on time! It’s not polite to be late. Also, it bothers other students. If you must come in late, be sure to do it quietly. Have your books out of your bag before you come into the classroom. Then go to your seat and sit quietly. In the US, it is not necessary to knock at the door before you come into the classroom.
小题1: If you can not go to school, .

A． the teacher will remind you of the homework

B． the teacher will call you what your homework is

C． you should find out what your homework is

D． you don’t have to do your homework

小题2:. If you are badly ill, .

A．you can’t be absent on a test day

B．you should take the test within one or two days

C．you should let your teacher know that you will be there for the test

D．you can miss the test

小题3:. In the US , if you are late.

A． it’s all right to come into the classroom within knocking at the door

B． take your books out of your bag after you come into the classroom

C． it’s not necessary to keep quiet when you enter the classroom

D． it’s not polite to knock at the door

小题4: The underline word “makeup” in the 3rd paragraph means .

A．化妆

B．编造

C．组成

D．补考

小题5:. The main idea of the passage is .

A．that you should answer the teacher’s questions in class

B．that you have the responsibility to do your homework

C．the rules you should follow as an American student

D．that it’s polite to be on time for class

答案

小题1:C
小题2:D
小题3:A
小题4:D
小题5:C

解析

试题分析：
小题1:通过It is not the teacher’s job to remind you of missed homework.可知AB是错误的；通过There is no excuse for not doing your homework.可知D是错误的，通过It is your responsibility to find out what homework you have missed. 可知本题选C。
小题2:通过Bad illness is the only reason for missing a test.可知，严重疾病是不考试唯一的原因。所以本题选D。
小题3:.通过Have your books out of your bag before you come into the classroom.可知B是错误的；通过sit quietly可知C是错误的；文中并没说敲门是不礼貌的，所以D也应排除。根据it is not necessary to knock at the door before you come into the classroom.可知，答案应该是A。
小题4:通过you should take the test within one or two days after you return to class可知，make up应该是补考的意思。
小题5:.通过阅读文章中的四条规定，可知本文主要讲了美国学校的规定。只有C符合题意，其他选项都很片面。所以本题选C。
点评：本文通过四个方面讲了美国学校的规定。它们分别是有关提问，作业，考试以及迟到时进教室的规定。阅读时，可以比较与中国的不同。完成题目时，注意联系常识和上下文加以推测，找出正确的答案。

举一反三

About ten men in every hundred have the trouble of color blindness in some way. Women are luckier, only about one in two hundred is affected（感染）in this matter. Perhaps, after all ,it is safer to be driven by a woman.
There are different kinds of color blindness. For example, a man cannot see deep red. He may think that red, orange and yellow are all shades (影子) of green. Sometimes a person can’t tell the difference between blue and green. Only a few unlucky men may see everything in shades of green— a strange world indeed.
Color blindness in human beings is a different thing to explain. In only one eye there are millions of very small things called “cones（锥状细胞）” . These help us to see in the bright light and to tell differences between colors. These are also millions of “rods“（杆状细胞），but these are used for seeing when it is nearly dark. They show us shapes but not colors.
Some insects have favorite colors. Mosquitoes(蚊子) like blue but do not like yellow. A red light will not attract insects, but a blue light will. Human beings also have favorite colors. Yet we are lucky. With the help of the cones in our eyes, we can see many beautiful colors by day, and with the help of the rods we can see shapes at night.
小题1:“Color blindness” means           in Chinese.
A. 盲目        B. 无色      C 色盲    D 讨厌颜色
小题2: Some people say it’s safer to be driven by women because         .

A．women drive more carefully

B．women are better at driving than men

C．women can see things more clearly

D．there are fewer color — blind women

小题3:With the help of the “cones”, we can .

A．tell different shapes	B．kill insets
C．see in the dark	D．tell orange from yellow

小题4: We can attract and kill mosquitoes by using a light.

A．red

B．yellow

C．blue

D．green

小题5: Which of the following sentences about color blindness is TRUE?

A．None of men can see deep red.

B．Not all of men have the same problem in recognizing colors.

C．None of men can tell the difference between blue and green.

D．All of men see everything in shades of green.

题型：不详难度：| 查看答案

Do you know anything about the moon? The moon is __1____than the earth（地球）, but the sun is ___2___ bigger than the earth. The moon is __3__ from the earth. It’s 380 000 kilometres away. On the earth we see that the moon __4___like a cake. There is _ 5____air on the moon, ___6___there is no living things there. The side of the moon towards（朝，向）the sun is very hot, while the other side is very __7____. People can jump__8__ on the moon than on the earth and walk more __9___there. It takes more than three days to get to the moon __10___spaceship（宇宙飞船）.

小题1:

A．smaller

B．bigger

C．shorter

D．longer

小题2:

A．very

B．much

C．quite

D．longer

小题3:

A．near

B．middle

C．far

D．back

小题4:

A．looks

B．watches

C．sees

D．finds

小题5:

A．much

B．some

C．no

D．any

小题6:

A．but

B．again

C．then

D．so

小题7:

A．hot

B．cold

C．warm

D．light

小题8:

A．happy

B．higher

C．early

D．different

小题9:

A．easily

B．hard

C．late

D．early

小题10:

A．on

B．by

C．in

D．at

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It was so dark outside the car window that it was hard to see anything.
“ Can I have a carrot, Mom?” Bruce asked.
“I don’t have any carrots,” his mom said. “How about an apple?”
“No,” said Bruce. “It has to be a carrot.”
“Why do you want a carrot?” asked his mom
“You always say carrots help your eyes.” said Bruce. “If I eat one now, it might help me see in the dark.”
Would eating a carrot really help Bruce? What is special about carrots? What makes a carrot special is its color. Carrots are orange because they contain(包含) bta-carotene( 胡萝卜素). Beta-carotene is a way of saying vitamin A. Your eyes need vitamin A. It helps them work.
When light hits your eye, very small parts inside turn the light into messages. The messages go to your brain（大脑）, and then you know what you’re looking at. Your eye can only turn light into messages when it has a special chemical(化学物质). Your eyes use vitamin A to make the special chemical. Every time your eye changes light into messages, a little bit of the chemical is used up. By the end of the day, you’ve looked at hundreds of things. That uses up a lot of the chemical. Your eyes need to make more.
What should you eat if you don’t like carrots? Don’t worry. Other fruits and vegetables have vitamin A, too. The secret is in their color. Most orange or red fruits and vegetables contain beta-carotene, or vitamin A, Sweet vegetable, red peppers（胡椒）, Mangoes(芒果) are a few foods that have the same orange secret.
小题1: Bruce wanted a carrot because he thought _______.
A. he liked it
B. it could help him see in the dark
C. it was sweet and delicious
小题2:How does vitamin A help your eyes work?
A. The special chemical can stop your eyes from using up vitamin A.
B. The special chemical is used to make Vitamin A which turns the light into messages
C. Vitamin A is used to make the special chemical which turns light into messages.
小题3: Which of the following is NOT true according to the passage?
A. Carrots are orange because they store beta-carotene.
B. Any food which is orange or red must have some Vitamin A.
C. Most fruits that are orange or red store some beta-carotene or Vitamin A.
小题4: Sweet vegetable, red peppers, and mangoes don’t have the same orange secret, do they?
A. No, they don’t. B. Yes, they do. C. I’m not sure.
小题5: The passage mainly tells us that _______.
A. we can’t see in the dark unless we eat many carrots every day
B. we can’t see unless we eat a lot of orange or red food every day
C. we should eat some food containing vitamin A so that we can see well

题型：不详难度：| 查看答案

Long time ago, our world was very beautiful. There were trees, flowers and rivers. It was very clean and tidy. 1 . We are living in a polluted environment, which is bad for out earth. 2 .The public has been calling for actions against pollution. Scientists have told us to protect out environment, 3 .
The earth is our only home. We should make it comfortable for ourselves and for our children in the future. Now nearly all of the countries are trying their best to stop pollution. Although they have done much, the progress is slow, 4 . No matter how difficult it is, we should try our best to fight against pollution. By working together, 5 .
根据短文内容，从方框中选出能填入空白处的最佳选项，补全短文。（5分）

题型：不详难度：| 查看答案

In China, water is used in many different ways. Farming takes 60 percent of China’s water use. Personal use, like drinking water, takes only 12 pencent. Fifty- three countries and regions (地方) in the world have water shortages. About one fifth of the world’s population was suffer(遭受) from water shortage.
Tips for saving water
Saving water is as easy as turning off a tap! Here are some simple things you can do at home.
² Turn off the water while you’re brushing your teeth.
² Take shorter showers. Can you get your showers down to three minutes?
² Fill a liter (升) plastic bottle with water and put it in your toilet tank. It will take up the same space as the water usually does, but in a year, it will keep 20,000 liters of water.
² When you wash dishes and clothes, don’t let the water run.
² Use the washing machine only when it’s full of clothes.
² 根据短文内容，填写下面表格。

Saving water
In China, ___1______ takes 60 percent of China’s water use.
Tips for saving water
_2_______ off the water while you’re brushing your teeth.	Take _____3__ showers. It’s best to get your showers down to three minutes.
Using a plastic bottle with water, put it in your toilet tank to __4_____ water.		Don’t let the water _5_____when you wash dishes and clothes.
Don’t use the __6______________unitl it is full of clothes.

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